1340774525 has 6 divisors (see below), whose sum is σ = 1662560442. Its totient is φ = 1072619600.

The previous prime is 1340774509. The next prime is 1340774531. The reversal of 1340774525 is 5254770431.

It can be written as a sum of positive squares in 3 ways, for example, as 256192036 + 1084582489 = 16006^2 + 32933^2 .

It is not a de Polignac number, because 1340774525 - 2⁴ = 1340774509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26815466 + ... + 26815515.

It is an arithmetic number, because the mean of its divisors is an integer number (277093407).

Almost surely, 2^1340774525 is an apocalyptic number.

It is an amenable number.

1340774525 is a deficient number, since it is larger than the sum of its proper divisors (321785917).

1340774525 is an equidigital number, since it uses as much as digits as its factorization.

1340774525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53630991 (or 53630986 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 1340774525 is about 36616.5881124935. The cubic root of 1340774525 is about 1102.6861418559.

The spelling of 1340774525 in words is "one billion, three hundred forty million, seven hundred seventy-four thousand, five hundred twenty-five".